133739448 has 16 divisors (see below), whose sum is σ = 334348680. Its totient is φ = 44579808.

The previous prime is 133739413. The next prime is 133739479. The reversal of 133739448 is 844937331.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2786215 + ... + 2786262.

Almost surely, 2^133739448 is an apocalyptic number.

It is an amenable number.

133739448 is an abundant number, since it is smaller than the sum of its proper divisors (200609232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133739448 is a wasteful number, since it uses less digits than its factorization.

133739448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572486 (or 5572482 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 133739448 is about 11564.5772944799. The cubic root of 133739448 is about 511.3911117064.

The spelling of 133739448 in words is "one hundred thirty-three million, seven hundred thirty-nine thousand, four hundred forty-eight".